How to use the head massager? 1. This massager uses USB power; 2. You can use it freely whether you are sitting, standing or lying down; 3. Put the massager close to the massage part and touch the power switch of the massager with your hand to rotate the motor; it can be used slightly during massage Press the machine hard to intensify the massage, or walk back and forth on the massage site; 4. Before use, everyone should check whether the wires, plugs, and shells of the massager are intact; 5. According to your own conditions and needs, select the switch "strong" ", "weak" position. When you start to use it, you can first adjust the switch to the "weak" position, because everyone has just touched the massager and may not be comfortable. After the massage for a period of time, there is no feeling of discomfort, and then adjust the massager to the "strong" level (a gradual process is required); 6. Each massage time is g…